package com.ktgj.common.core.web.page;

import com.ktgj.common.core.utils.ServletUtils;
import com.ktgj.common.core.utils.helper.StringHelper;

/**
 * 表格数据处理
 * 
 * @author ruoyi
 */
public class TableSupport
{
    /**
     * 当前记录起始索引
     */
    public static final String PAGE_NUM = "pageNum";

    /**
     * 每页显示记录数
     */
    public static final String PAGE_SIZE = "pageSize";

    /**
     * 排序列
     */
    public static final String ORDER_BY_COLUMN = "orderByColumn";

    /**
     * 排序的方向 "desc" 或者 "asc".
     */
    public static final String IS_ASC = "isAsc";

    /**
     * 封装分页对象
     */
    public static PageDomain getPageDomain()
    {
        PageDomain pageDomain = new PageDomain();
        pageDomain.setPageNum(ServletUtils.getParameterToInt(PAGE_NUM));
        pageDomain.setPageSize(ServletUtils.getParameterToInt(PAGE_SIZE));
        if (pageDomain.getPageNum() == null)
        {
            if (!StringHelper.isNullOrEmpty(ServletUtils.getRequest().getHeader(PAGE_NUM)))
            {
                pageDomain.setPageNum(Integer.parseInt(ServletUtils.getRequest().getHeader(PAGE_NUM)));
            }
            if (!StringHelper.isNullOrEmpty(ServletUtils.getRequest().getHeader(PAGE_SIZE)))
            {
                pageDomain.setPageSize(Integer.parseInt(ServletUtils.getRequest().getHeader(PAGE_SIZE)));
            }
        }
        pageDomain.setOrderByColumn(ServletUtils.getParameter(ORDER_BY_COLUMN));
        pageDomain.setIsAsc(ServletUtils.getParameter(IS_ASC));
        return pageDomain;
    }

    public static PageDomain buildPageRequest()
    {
        return getPageDomain();
    }
}
